// Credit: https://github.com/paulmillr/es6-shim/blob/master/es6-shim.js
  
  'use strict';
  
  var toFloat32;
  
  if (typeof Float32Array !== 'undefined') {
  	toFloat32 = (function () {
  		var float32Array = new Float32Array(1);
  		return function (x) {
  			float32Array[0] = x;
  			return float32Array[0];
  		};
  	}());
  } else {
  	toFloat32 = (function () {
  		var pack   = require('../_pack-ieee754')
  		  , unpack = require('../_unpack-ieee754');
  
  		return function (x) {
  			return unpack(pack(x, 8, 23), 8, 23);
  		};
  	}());
  }
  
  module.exports = function (x) {
  	if (isNaN(x)) return NaN;
  	x = Number(x);
  	if (x === 0) return x;
  	if (!isFinite(x)) return x;
  
  	return toFloat32(x);
  };